OISD
| Acronym | Definition |
|---|---|
| OISD | Oil Industry Safety Directorate (India) |
| OISD | Orcas Island School District (Washington) |
| OISD | Office of Instructional Support & Development |
| OISD | Orangefield Independent School District (Orange, TX) |
| OISD | Oceana Intermediate School District (Hart, MI) |
| OISD | Olney Independent School District (Texas) |